private void ReadXmlDiffgram(XmlReader reader) { // fill correctly
int d = reader.Depth;
bool fEnforce = this.EnforceConstraints;
this.EnforceConstraints =false;
DataTable newDt;
bool isEmpty;
if (this.Rows.Count == 0) {
isEmpty = true;
newDt = this;
}
else {
isEmpty = false;
newDt = this.Clone();
newDt.EnforceConstraints = false;
}
newDt.Rows.nullInList = 0;
reader.MoveToContent();
if ((reader.LocalName != Keywords.DIFFGRAM) && (reader.NamespaceURI != Keywords.DFFNS))
return;
reader.Read();
if (reader.NodeType == XmlNodeType.Whitespace) {
MoveToElement(reader, reader.Depth - 1 /*iCurrentDepth*/); // skip over whitespaces.
}
newDt.fInLoadDiffgram = true;
if (reader.Depth > d) {
if ((reader.NamespaceURI != Keywords.DFFNS) && (reader.NamespaceURI != Keywords.MSDNS)) {
//we should be inside the dataset part
XmlDocument xdoc = new XmlDocument();
XmlElement node = xdoc.CreateElement(reader.Prefix, reader.LocalName, reader.NamespaceURI);
reader.Read();
if (reader.Depth-1 > d) {
XmlDataLoader xmlload = new XmlDataLoader(newDt, false, node, false);
xmlload.isDiffgram = true; // turn on the special processing
xmlload.LoadData(reader);
}
ReadEndElement(reader);
}
if (((reader.LocalName == Keywords.SQL_BEFORE) && (reader.NamespaceURI == Keywords.DFFNS)) ||
((reader.LocalName == Keywords.MSD_ERRORS) && (reader.NamespaceURI == Keywords.DFFNS)))
{
//this will consume the changes and the errors part
XMLDiffLoader diffLoader = new XMLDiffLoader();
diffLoader.LoadDiffGram(newDt, reader);
}
// get to the closing diff tag
while(reader.Depth > d) {
reader.Read();
}
// read the closing tag
ReadEndElement(reader);
}
if (newDt.Rows.nullInList > 0)
throw ExceptionBuilder.RowInsertMissing(newDt.TableName);
newDt.fInLoadDiffgram = false;
List<DataTable> tableList = new List<DataTable>();
tableList.Add(this);
CreateTableList(this, tableList);
// this is terrible, optimize it
for (int i = 0; i < tableList.Count ; i++) {
DataRelation[] relations = tableList[i].NestedParentRelations;
foreach(DataRelation rel in relations) {
if (rel != null && rel.ParentTable == tableList[i]) {
foreach (DataRow r in tableList[i].Rows) {
foreach (DataRelation rel2 in relations) {
r.CheckForLoops(rel2);
}
}
}
}
}
if (!isEmpty) {
this.Merge(newDt);
}
this.EnforceConstraints = fEnforce;
}
internal XmlReadMode ReadXml(XmlReader reader, bool denyResolving)
{
IntPtr hscp;
Bid.ScopeEnter(out hscp, "<ds.DataTable.ReadXml|INFO> %d#, denyResolving=%d{bool}\n", ObjectID, denyResolving);
try {
DataTable.RowDiffIdUsageSection rowDiffIdUsage = new DataTable.RowDiffIdUsageSection();
try {
bool fDataFound = false;
bool fSchemaFound = false;
bool fDiffsFound = false;
bool fIsXdr = false;
int iCurrentDepth = -1;
XmlReadMode ret = XmlReadMode.Auto;
// clear the hashtable to avoid conflicts between diffgrams, SqlHotFix 782
rowDiffIdUsage.Prepare(this);
if (reader == null)
return ret;
bool originalEnforceConstraint = false;
if (this.DataSet != null) {
originalEnforceConstraint = this.DataSet.EnforceConstraints;
this.DataSet.EnforceConstraints = false;
}
else {
originalEnforceConstraint = this.EnforceConstraints;
this.EnforceConstraints = false;
}
if (reader is XmlTextReader)
((XmlTextReader) reader).WhitespaceHandling = WhitespaceHandling.Significant;
XmlDocument xdoc = new XmlDocument(); // we may need this to infer the schema
XmlDataLoader xmlload = null;
reader.MoveToContent();
if (Columns.Count == 0) {
if (IsEmptyXml(reader)) {
reader.Read();
return ret;
}
}
if (reader.NodeType == XmlNodeType.Element) {
iCurrentDepth = reader.Depth;
if ((reader.LocalName == Keywords.DIFFGRAM) && (reader.NamespaceURI == Keywords.DFFNS)) {
if (Columns.Count == 0) {
if (reader.IsEmptyElement) {
reader.Read();
return XmlReadMode.DiffGram;
}
throw ExceptionBuilder.DataTableInferenceNotSupported();
}
this.ReadXmlDiffgram(reader);
// read the closing tag of the current element
ReadEndElement(reader);
RestoreConstraint(originalEnforceConstraint);
return XmlReadMode.DiffGram;
}
// if reader points to the schema load it
if (reader.LocalName == Keywords.XDR_SCHEMA && reader.NamespaceURI==Keywords.XDRNS) {
// load XDR schema and exit
ReadXDRSchema(reader);
RestoreConstraint(originalEnforceConstraint);
return XmlReadMode.ReadSchema; //since the top level element is a schema return
}
if (reader.LocalName == Keywords.XSD_SCHEMA && reader.NamespaceURI==Keywords.XSDNS) {
// load XSD schema and exit
ReadXmlSchema(reader, denyResolving);
RestoreConstraint(originalEnforceConstraint);
return XmlReadMode.ReadSchema; //since the top level element is a schema return
}
if (reader.LocalName == Keywords.XSD_SCHEMA && reader.NamespaceURI.StartsWith(Keywords.XSD_NS_START, StringComparison.Ordinal)) {
if (this.DataSet != null) { // we should not throw for constraint, we already will throw for unsupported schema, so restore enforce cost, but not via property
this.DataSet.RestoreEnforceConstraints(originalEnforceConstraint);
}
else {
this.enforceConstraints = originalEnforceConstraint;
}
throw ExceptionBuilder.DataSetUnsupportedSchema(Keywords.XSDNS);
}
// now either the top level node is a table and we load it through dataReader...
// ... or backup the top node and all its attributes because we may need to InferSchema
XmlElement topNode = xdoc.CreateElement(reader.Prefix, reader.LocalName, reader.NamespaceURI);
if (reader.HasAttributes) {
int attrCount = reader.AttributeCount;
for (int i=0;i<attrCount;i++) {
reader.MoveToAttribute(i);
if (reader.NamespaceURI.Equals(Keywords.XSD_XMLNS_NS))
topNode.SetAttribute(reader.Name, reader.GetAttribute(i));
else {
XmlAttribute attr = topNode.SetAttributeNode(reader.LocalName, reader.NamespaceURI);
attr.Prefix = reader.Prefix;
attr.Value = reader.GetAttribute(i);
}
}
}
reader.Read();
while(MoveToElement(reader, iCurrentDepth)) {
if ((reader.LocalName == Keywords.DIFFGRAM) && (reader.NamespaceURI == Keywords.DFFNS)) {
this.ReadXmlDiffgram(reader);
// read the closing tag of the current element
ReadEndElement(reader);
RestoreConstraint(originalEnforceConstraint);
return XmlReadMode.DiffGram;
}
// if reader points to the schema load it...
if (!fSchemaFound && !fDataFound && reader.LocalName == Keywords.XDR_SCHEMA && reader.NamespaceURI==Keywords.XDRNS) {
// load XDR schema and exit
ReadXDRSchema(reader);
fSchemaFound = true;
fIsXdr = true;
continue;
}
if (reader.LocalName == Keywords.XSD_SCHEMA && reader.NamespaceURI==Keywords.XSDNS) {
// load XSD schema and exit
ReadXmlSchema(reader, denyResolving);
fSchemaFound = true;
continue;
}
if (reader.LocalName == Keywords.XSD_SCHEMA && reader.NamespaceURI.StartsWith(Keywords.XSD_NS_START, StringComparison.Ordinal)) {
if (this.DataSet != null) { // we should not throw for constraint, we already will throw for unsupported schema, so restore enforce cost, but not via property
this.DataSet.RestoreEnforceConstraints(originalEnforceConstraint);
}
else {
this.enforceConstraints = originalEnforceConstraint;
}
throw ExceptionBuilder.DataSetUnsupportedSchema(Keywords.XSDNS);
}
if ((reader.LocalName == Keywords.DIFFGRAM) && (reader.NamespaceURI == Keywords.DFFNS)) {
this.ReadXmlDiffgram(reader);
fDiffsFound = true;
ret = XmlReadMode.DiffGram;
}
else {
// we found data here
fDataFound = true;
if (!fSchemaFound && Columns.Count == 0) {
XmlNode node = xdoc.ReadNode(reader);
topNode.AppendChild(node);
}
else {
if (xmlload == null)
xmlload = new XmlDataLoader(this, fIsXdr, topNode, false);
xmlload.LoadData(reader);
if (fSchemaFound)
ret = XmlReadMode.ReadSchema;
else
ret = XmlReadMode.IgnoreSchema;
}
}
}
// read the closing tag of the current element
ReadEndElement(reader);
// now top node contains the data part
xdoc.AppendChild(topNode);
if (!fSchemaFound && Columns.Count == 0) {
if (IsEmptyXml(reader)) {
reader.Read();
return ret;
}
throw ExceptionBuilder.DataTableInferenceNotSupported();
}
if (xmlload == null)
xmlload = new XmlDataLoader(this, fIsXdr, false);
// so we InferSchema
if (!fDiffsFound) {// we need to add support for inference here
}
}
RestoreConstraint(originalEnforceConstraint);
return ret;
}
finally {
rowDiffIdUsage.Cleanup();
}
}
finally{
Bid.ScopeLeave(ref hscp);
}
}
internal XmlReadMode ReadXml(XmlReader reader, XmlReadMode mode, bool denyResolving)
{
DataTable.RowDiffIdUsageSection rowDiffIdUsage = new DataTable.RowDiffIdUsageSection();
try {
bool fSchemaFound = false;
bool fDataFound = false;
bool fIsXdr = false;
int iCurrentDepth = -1;
XmlReadMode ret = mode;
// Dev11 904428: prepare and cleanup rowDiffId hashtable
rowDiffIdUsage.Prepare(this);
if (reader == null)
return ret;
bool originalEnforceConstraint = false;
if (this.DataSet != null) {
originalEnforceConstraint = this.DataSet.EnforceConstraints;
this.DataSet.EnforceConstraints = false;
}
else {
originalEnforceConstraint = this.EnforceConstraints;
this.EnforceConstraints = false;
}
if (reader is XmlTextReader)
((XmlTextReader) reader).WhitespaceHandling = WhitespaceHandling.Significant;
XmlDocument xdoc = new XmlDocument(); // we may need this to infer the schema
if ((mode != XmlReadMode.Fragment) && (reader.NodeType == XmlNodeType.Element))
iCurrentDepth = reader.Depth;
reader.MoveToContent();
if (Columns.Count == 0) {
if (IsEmptyXml(reader)) {
reader.Read();
return ret;
}
}
XmlDataLoader xmlload = null;
if (reader.NodeType == XmlNodeType.Element) {
XmlElement topNode = null;
if (mode == XmlReadMode.Fragment) {
xdoc.AppendChild(xdoc.CreateElement("ds_sqlXmlWraPPeR"));
topNode = xdoc.DocumentElement;
}
else { //handle the top node
if ((reader.LocalName == Keywords.DIFFGRAM) && (reader.NamespaceURI == Keywords.DFFNS)) {
if ((mode == XmlReadMode.DiffGram) || (mode == XmlReadMode.IgnoreSchema)) {
if (Columns.Count == 0) {
if(reader.IsEmptyElement) {
reader.Read();
return XmlReadMode.DiffGram;
}
throw ExceptionBuilder.DataTableInferenceNotSupported();
}
this.ReadXmlDiffgram(reader);
// read the closing tag of the current element
ReadEndElement(reader);
}
else {
reader.Skip();
}
RestoreConstraint(originalEnforceConstraint);
return ret;
}
if (reader.LocalName == Keywords.XDR_SCHEMA && reader.NamespaceURI==Keywords.XDRNS) {
// load XDR schema and exit
if ((mode != XmlReadMode.IgnoreSchema) && (mode != XmlReadMode.InferSchema)) {
ReadXDRSchema(reader);
}
else {
reader.Skip();
}
RestoreConstraint(originalEnforceConstraint);
return ret; //since the top level element is a schema return
}
if (reader.LocalName == Keywords.XSD_SCHEMA && reader.NamespaceURI==Keywords.XSDNS) {
// load XSD schema and exit
if ((mode != XmlReadMode.IgnoreSchema) && (mode != XmlReadMode.InferSchema)) {
ReadXmlSchema(reader, denyResolving);
}
else
reader.Skip();
RestoreConstraint(originalEnforceConstraint);
return ret; //since the top level element is a schema return
}
if (reader.LocalName == Keywords.XSD_SCHEMA && reader.NamespaceURI.StartsWith(Keywords.XSD_NS_START, StringComparison.Ordinal)) {
if (this.DataSet != null) { // we should not throw for constraint, we already will throw for unsupported schema, so restore enforce cost, but not via property
this.DataSet.RestoreEnforceConstraints(originalEnforceConstraint);
}
else {
this.enforceConstraints = originalEnforceConstraint;
}
throw ExceptionBuilder.DataSetUnsupportedSchema(Keywords.XSDNS);
}
// now either the top level node is a table and we load it through dataReader...
// ... or backup the top node and all its attributes
topNode = xdoc.CreateElement(reader.Prefix, reader.LocalName, reader.NamespaceURI);
if (reader.HasAttributes) {
int attrCount = reader.AttributeCount;
for (int i=0;i<attrCount;i++) {
reader.MoveToAttribute(i);
if (reader.NamespaceURI.Equals(Keywords.XSD_XMLNS_NS))
topNode.SetAttribute(reader.Name, reader.GetAttribute(i));
else {
XmlAttribute attr = topNode.SetAttributeNode(reader.LocalName, reader.NamespaceURI);
attr.Prefix = reader.Prefix;
attr.Value = reader.GetAttribute(i);
}
}
}
reader.Read();
}
while(MoveToElement(reader, iCurrentDepth)) {
if (reader.LocalName == Keywords.XDR_SCHEMA && reader.NamespaceURI==Keywords.XDRNS) {
// load XDR schema
if (!fSchemaFound && !fDataFound && (mode != XmlReadMode.IgnoreSchema) && (mode != XmlReadMode.InferSchema)) {
ReadXDRSchema(reader);
fSchemaFound = true;
fIsXdr = true;
}
else {
reader.Skip();
}
continue;
}
if (reader.LocalName == Keywords.XSD_SCHEMA && reader.NamespaceURI==Keywords.XSDNS) {
// load XSD schema and exit
if ((mode != XmlReadMode.IgnoreSchema) && (mode != XmlReadMode.InferSchema)) {
ReadXmlSchema(reader, denyResolving);
fSchemaFound = true;
}
else {
reader.Skip();
}
continue;
}
if ((reader.LocalName == Keywords.DIFFGRAM) && (reader.NamespaceURI == Keywords.DFFNS)) {
if ((mode == XmlReadMode.DiffGram) || (mode == XmlReadMode.IgnoreSchema)) {
if (Columns.Count == 0) {
if(reader.IsEmptyElement) {
reader.Read();
return XmlReadMode.DiffGram;
}
throw ExceptionBuilder.DataTableInferenceNotSupported();
}
this.ReadXmlDiffgram(reader);
ret = XmlReadMode.DiffGram;
}
else {
reader.Skip();
}
continue;
}
if (reader.LocalName == Keywords.XSD_SCHEMA && reader.NamespaceURI.StartsWith(Keywords.XSD_NS_START, StringComparison.Ordinal)) {
if (this.DataSet != null) { // we should not throw for constraint, we already will throw for unsupported schema, so restore enforce cost, but not via property
this.DataSet.RestoreEnforceConstraints(originalEnforceConstraint);
}
else {
this.enforceConstraints = originalEnforceConstraint;
}
throw ExceptionBuilder.DataSetUnsupportedSchema(Keywords.XSDNS);
}
if (mode == XmlReadMode.DiffGram) {
reader.Skip();
continue; // we do not read data in diffgram mode
}
// if we are here we found some data
fDataFound = true;
if (mode == XmlReadMode.InferSchema) { //save the node in DOM until the end;
XmlNode node = xdoc.ReadNode(reader);
topNode.AppendChild(node);
}
else {
if (Columns.Count == 0) {
throw ExceptionBuilder.DataTableInferenceNotSupported();
}
if (xmlload == null)
xmlload = new XmlDataLoader(this, fIsXdr, topNode, mode == XmlReadMode.IgnoreSchema);
xmlload.LoadData(reader);
}
} //end of the while
// read the closing tag of the current element
ReadEndElement(reader);
// now top node contains the data part
xdoc.AppendChild(topNode);
if (xmlload == null)
xmlload = new XmlDataLoader(this, fIsXdr, mode == XmlReadMode.IgnoreSchema);
if (mode == XmlReadMode.DiffGram) {
// we already got the diffs through XmlReader interface
RestoreConstraint(originalEnforceConstraint);
return ret;
}
//todo
// Load Data
if (mode == XmlReadMode.InferSchema) {
if (Columns.Count == 0) {
throw ExceptionBuilder.DataTableInferenceNotSupported();
}
// [....] xmlload.InferSchema(xdoc, null);
// [....] xmlload.LoadData(xdoc);
}
}
RestoreConstraint(originalEnforceConstraint);
return ret;
}
finally {
// Dev11 904428: prepare and cleanup rowDiffId hashtable
rowDiffIdUsage.Cleanup();
}
}
internal XmlReadMode ReadXml(XmlReader reader, bool denyResolving)
{
XmlReadMode mode2;
IntPtr ptr;
Bid.ScopeEnter(out ptr, "<ds.DataSet.ReadXml|INFO> %d#, denyResolving=%d{bool}\n", this.ObjectID, denyResolving);
try
{
try
{
bool flag7 = false;
bool flag = false;
bool flag6 = false;
bool isXdr = false;
int depth = -1;
XmlReadMode auto = XmlReadMode.Auto;
bool flag2 = false;
bool flag5 = false;
for (int i = 0; i < this.Tables.Count; i++)
{
this.Tables[i].rowDiffId = null;
}
if (reader != null)
{
if (this.Tables.Count == 0)
{
flag2 = true;
}
if (reader is XmlTextReader)
{
((XmlTextReader) reader).WhitespaceHandling = WhitespaceHandling.Significant;
}
XmlDocument xdoc = new XmlDocument();
XmlDataLoader loader = null;
reader.MoveToContent();
if (reader.NodeType == XmlNodeType.Element)
{
depth = reader.Depth;
}
if (reader.NodeType != XmlNodeType.Element)
{
return auto;
}
if ((reader.LocalName == "diffgram") && (reader.NamespaceURI == "urn:schemas-microsoft-com:xml-diffgram-v1"))
{
this.ReadXmlDiffgram(reader);
this.ReadEndElement(reader);
return XmlReadMode.DiffGram;
}
if ((reader.LocalName == "Schema") && (reader.NamespaceURI == "urn:schemas-microsoft-com:xml-data"))
{
this.ReadXDRSchema(reader);
return XmlReadMode.ReadSchema;
}
if ((reader.LocalName == "schema") && (reader.NamespaceURI == "http://www.w3.org/2001/XMLSchema"))
{
this.ReadXSDSchema(reader, denyResolving);
return XmlReadMode.ReadSchema;
}
if ((reader.LocalName == "schema") && reader.NamespaceURI.StartsWith("http://www.w3.org/", StringComparison.Ordinal))
{
throw ExceptionBuilder.DataSetUnsupportedSchema("http://www.w3.org/2001/XMLSchema");
}
XmlElement topNode = xdoc.CreateElement(reader.Prefix, reader.LocalName, reader.NamespaceURI);
if (reader.HasAttributes)
{
int attributeCount = reader.AttributeCount;
for (int j = 0; j < attributeCount; j++)
{
reader.MoveToAttribute(j);
if (reader.NamespaceURI.Equals("http://www.w3.org/2000/xmlns/"))
{
topNode.SetAttribute(reader.Name, reader.GetAttribute(j));
}
else
{
XmlAttribute attribute = topNode.SetAttributeNode(reader.LocalName, reader.NamespaceURI);
attribute.Prefix = reader.Prefix;
attribute.Value = reader.GetAttribute(j);
}
}
}
reader.Read();
string str = reader.Value;
while (this.MoveToElement(reader, depth))
{
if ((reader.LocalName == "diffgram") && (reader.NamespaceURI == "urn:schemas-microsoft-com:xml-diffgram-v1"))
{
this.ReadXmlDiffgram(reader);
auto = XmlReadMode.DiffGram;
}
if ((!flag && !flag7) && ((reader.LocalName == "Schema") && (reader.NamespaceURI == "urn:schemas-microsoft-com:xml-data")))
{
this.ReadXDRSchema(reader);
flag = true;
isXdr = true;
}
else if ((reader.LocalName == "schema") && (reader.NamespaceURI == "http://www.w3.org/2001/XMLSchema"))
{
this.ReadXSDSchema(reader, denyResolving);
flag = true;
}
else
{
if ((reader.LocalName == "schema") && reader.NamespaceURI.StartsWith("http://www.w3.org/", StringComparison.Ordinal))
{
throw ExceptionBuilder.DataSetUnsupportedSchema("http://www.w3.org/2001/XMLSchema");
}
if (!(reader.LocalName == "diffgram") || !(reader.NamespaceURI == "urn:schemas-microsoft-com:xml-diffgram-v1"))
{
goto Label_0340;
}
this.ReadXmlDiffgram(reader);
flag6 = true;
auto = XmlReadMode.DiffGram;
}
continue;
Label_0339:
reader.Read();
Label_0340:
if (!reader.EOF && (reader.NodeType == XmlNodeType.Whitespace))
{
goto Label_0339;
}
if (reader.NodeType == XmlNodeType.Element)
{
flag7 = true;
if (!flag && (this.Tables.Count == 0))
{
XmlNode newChild = xdoc.ReadNode(reader);
topNode.AppendChild(newChild);
}
else
{
if (loader == null)
{
loader = new XmlDataLoader(this, isXdr, topNode, false);
}
loader.LoadData(reader);
flag5 = true;
if (flag)
{
auto = XmlReadMode.ReadSchema;
continue;
}
auto = XmlReadMode.IgnoreSchema;
}
}
}
this.ReadEndElement(reader);
bool flag4 = false;
bool fTopLevelTable = this.fTopLevelTable;
if ((!flag && (this.Tables.Count == 0)) && !topNode.HasChildNodes)
{
this.fTopLevelTable = true;
flag4 = true;
if ((str != null) && (str.Length > 0))
{
topNode.InnerText = str;
}
}
if ((!flag2 && (str != null)) && (str.Length > 0))
{
topNode.InnerText = str;
}
xdoc.AppendChild(topNode);
if (loader == null)
{
loader = new XmlDataLoader(this, isXdr, topNode, false);
}
if (!flag2 && !flag5)
{
XmlElement documentElement = xdoc.DocumentElement;
if ((documentElement.ChildNodes.Count == 0) || ((documentElement.ChildNodes.Count == 1) && (documentElement.FirstChild.GetType() == typeof(XmlText))))
{
bool flag8 = this.fTopLevelTable;
if (((this.DataSetName != documentElement.Name) && (this.namespaceURI != documentElement.NamespaceURI)) && this.Tables.Contains(documentElement.Name, (documentElement.NamespaceURI.Length == 0) ? null : documentElement.NamespaceURI, false, true))
{
this.fTopLevelTable = true;
}
try
{
loader.LoadData(xdoc);
}
finally
{
this.fTopLevelTable = flag8;
}
}
}
if (!flag6)
{
if (!flag && (this.Tables.Count == 0))
{
this.InferSchema(xdoc, null, XmlReadMode.Auto);
auto = XmlReadMode.InferSchema;
loader.FromInference = true;
try
{
loader.LoadData(xdoc);
}
finally
{
loader.FromInference = false;
}
}
if (flag4)
{
this.fTopLevelTable = fTopLevelTable;
}
}
}
return auto;
}
finally
{
for (int k = 0; k < this.Tables.Count; k++)
{
this.Tables[k].rowDiffId = null;
}
}
}
finally
{
Bid.ScopeLeave(ref ptr);
}
return mode2;
}
internal XmlReadMode ReadXml(XmlReader reader, XmlReadMode mode, bool denyResolving)
{
XmlReadMode mode3;
IntPtr ptr;
Bid.ScopeEnter(out ptr, "<ds.DataSet.ReadXml|INFO> %d#, mode=%d{ds.XmlReadMode}, denyResolving=%d{bool}\n", this.ObjectID, (int) mode, denyResolving);
try
{
bool flag2 = false;
bool flag3 = false;
bool isXdr = false;
int depth = -1;
XmlReadMode diffGram = mode;
if (reader == null)
{
return diffGram;
}
if (mode == XmlReadMode.Auto)
{
return this.ReadXml(reader);
}
if (reader is XmlTextReader)
{
((XmlTextReader) reader).WhitespaceHandling = WhitespaceHandling.Significant;
}
XmlDocument xdoc = new XmlDocument();
if ((mode != XmlReadMode.Fragment) && (reader.NodeType == XmlNodeType.Element))
{
depth = reader.Depth;
}
reader.MoveToContent();
XmlDataLoader loader = null;
if (reader.NodeType == XmlNodeType.Element)
{
XmlElement topNode = null;
if (mode == XmlReadMode.Fragment)
{
xdoc.AppendChild(xdoc.CreateElement("ds_sqlXmlWraPPeR"));
topNode = xdoc.DocumentElement;
}
else
{
if ((reader.LocalName == "diffgram") && (reader.NamespaceURI == "urn:schemas-microsoft-com:xml-diffgram-v1"))
{
if ((mode == XmlReadMode.DiffGram) || (mode == XmlReadMode.IgnoreSchema))
{
this.ReadXmlDiffgram(reader);
this.ReadEndElement(reader);
return diffGram;
}
reader.Skip();
return diffGram;
}
if ((reader.LocalName == "Schema") && (reader.NamespaceURI == "urn:schemas-microsoft-com:xml-data"))
{
if (((mode != XmlReadMode.IgnoreSchema) && (mode != XmlReadMode.InferSchema)) && (mode != XmlReadMode.InferTypedSchema))
{
this.ReadXDRSchema(reader);
return diffGram;
}
reader.Skip();
return diffGram;
}
if ((reader.LocalName == "schema") && (reader.NamespaceURI == "http://www.w3.org/2001/XMLSchema"))
{
if (((mode != XmlReadMode.IgnoreSchema) && (mode != XmlReadMode.InferSchema)) && (mode != XmlReadMode.InferTypedSchema))
{
this.ReadXSDSchema(reader, denyResolving);
return diffGram;
}
reader.Skip();
return diffGram;
}
if ((reader.LocalName == "schema") && reader.NamespaceURI.StartsWith("http://www.w3.org/", StringComparison.Ordinal))
{
throw ExceptionBuilder.DataSetUnsupportedSchema("http://www.w3.org/2001/XMLSchema");
}
topNode = xdoc.CreateElement(reader.Prefix, reader.LocalName, reader.NamespaceURI);
if (reader.HasAttributes)
{
int attributeCount = reader.AttributeCount;
for (int i = 0; i < attributeCount; i++)
{
reader.MoveToAttribute(i);
if (reader.NamespaceURI.Equals("http://www.w3.org/2000/xmlns/"))
{
topNode.SetAttribute(reader.Name, reader.GetAttribute(i));
}
else
{
XmlAttribute attribute = topNode.SetAttributeNode(reader.LocalName, reader.NamespaceURI);
attribute.Prefix = reader.Prefix;
attribute.Value = reader.GetAttribute(i);
}
}
}
reader.Read();
}
while (this.MoveToElement(reader, depth))
{
if ((reader.LocalName == "Schema") && (reader.NamespaceURI == "urn:schemas-microsoft-com:xml-data"))
{
if (((!flag2 && !flag3) && ((mode != XmlReadMode.IgnoreSchema) && (mode != XmlReadMode.InferSchema))) && (mode != XmlReadMode.InferTypedSchema))
{
this.ReadXDRSchema(reader);
flag2 = true;
isXdr = true;
}
else
{
reader.Skip();
}
}
else
{
if ((reader.LocalName == "schema") && (reader.NamespaceURI == "http://www.w3.org/2001/XMLSchema"))
{
if (((mode != XmlReadMode.IgnoreSchema) && (mode != XmlReadMode.InferSchema)) && (mode != XmlReadMode.InferTypedSchema))
{
this.ReadXSDSchema(reader, denyResolving);
flag2 = true;
}
else
{
reader.Skip();
}
continue;
}
if ((reader.LocalName == "diffgram") && (reader.NamespaceURI == "urn:schemas-microsoft-com:xml-diffgram-v1"))
{
if ((mode == XmlReadMode.DiffGram) || (mode == XmlReadMode.IgnoreSchema))
{
this.ReadXmlDiffgram(reader);
diffGram = XmlReadMode.DiffGram;
}
else
{
reader.Skip();
}
continue;
}
if ((reader.LocalName == "schema") && reader.NamespaceURI.StartsWith("http://www.w3.org/", StringComparison.Ordinal))
{
throw ExceptionBuilder.DataSetUnsupportedSchema("http://www.w3.org/2001/XMLSchema");
}
if (mode == XmlReadMode.DiffGram)
{
reader.Skip();
}
else
{
flag3 = true;
if ((mode == XmlReadMode.InferSchema) || (mode == XmlReadMode.InferTypedSchema))
{
XmlNode newChild = xdoc.ReadNode(reader);
topNode.AppendChild(newChild);
continue;
}
if (loader == null)
{
loader = new XmlDataLoader(this, isXdr, topNode, mode == XmlReadMode.IgnoreSchema);
}
loader.LoadData(reader);
}
}
}
this.ReadEndElement(reader);
xdoc.AppendChild(topNode);
if (loader == null)
{
loader = new XmlDataLoader(this, isXdr, mode == XmlReadMode.IgnoreSchema);
}
if (mode == XmlReadMode.DiffGram)
{
return diffGram;
}
if ((mode == XmlReadMode.InferSchema) || (mode == XmlReadMode.InferTypedSchema))
{
this.InferSchema(xdoc, null, mode);
diffGram = XmlReadMode.InferSchema;
loader.FromInference = true;
try
{
loader.LoadData(xdoc);
}
finally
{
loader.FromInference = false;
}
}
}
mode3 = diffGram;
}
finally
{
Bid.ScopeLeave(ref ptr);
}
return mode3;
}
internal XmlReadMode ReadXml(XmlReader reader, XmlReadMode mode, bool denyResolving)
{
IntPtr hscp;
Bid.ScopeEnter(out hscp, "<ds.DataSet.ReadXml|INFO> %d#, mode=%d{ds.XmlReadMode}, denyResolving=%d{bool}\n", ObjectID, (int)mode, denyResolving);
try {
XmlReadMode ret = mode;
if (reader == null)
return ret;
if (mode == XmlReadMode.Auto) {
// Dev11 915079: nested ReadXml calls on the same DataSet must be done outside of RowDiffIdUsage scope
return ReadXml(reader);
}
DataTable.DSRowDiffIdUsageSection rowDiffIdUsage = new DataTable.DSRowDiffIdUsageSection();
try {
bool fSchemaFound = false;
bool fDataFound = false;
bool fIsXdr = false;
int iCurrentDepth = -1;
// Dev11 904428: prepare and cleanup rowDiffId hashtable
rowDiffIdUsage.Prepare(this);
if (reader is XmlTextReader)
((XmlTextReader)reader).WhitespaceHandling = WhitespaceHandling.Significant;
XmlDocument xdoc = new XmlDocument(); // we may need this to infer the schema
if ((mode != XmlReadMode.Fragment) && (reader.NodeType == XmlNodeType.Element))
iCurrentDepth = reader.Depth;
reader.MoveToContent();
XmlDataLoader xmlload = null;
if (reader.NodeType == XmlNodeType.Element) {
XmlElement topNode = null;
if (mode == XmlReadMode.Fragment) {
xdoc.AppendChild(xdoc.CreateElement("ds_sqlXmlWraPPeR"));
topNode = xdoc.DocumentElement;
}
else { //handle the top node
if ((reader.LocalName == Keywords.DIFFGRAM) && (reader.NamespaceURI == Keywords.DFFNS)) {
if ((mode == XmlReadMode.DiffGram) || (mode == XmlReadMode.IgnoreSchema)) {
this.ReadXmlDiffgram(reader);
// read the closing tag of the current element
ReadEndElement(reader);
}
else {
reader.Skip();
}
return ret;
}
if (reader.LocalName == Keywords.XDR_SCHEMA && reader.NamespaceURI == Keywords.XDRNS) {
// load XDR schema and exit
if ((mode != XmlReadMode.IgnoreSchema) && (mode != XmlReadMode.InferSchema) &&
(mode != XmlReadMode.InferTypedSchema))
{
ReadXDRSchema(reader);
}
else {
reader.Skip();
}
return ret; //since the top level element is a schema return
}
if (reader.LocalName == Keywords.XSD_SCHEMA && reader.NamespaceURI == Keywords.XSDNS) {
// load XSD schema and exit
if ((mode != XmlReadMode.IgnoreSchema) && (mode != XmlReadMode.InferSchema) &&
(mode != XmlReadMode.InferTypedSchema))
{
ReadXSDSchema(reader, denyResolving);
}
else
reader.Skip();
return ret; //since the top level element is a schema return
}
if (reader.LocalName == Keywords.XSD_SCHEMA && reader.NamespaceURI.StartsWith(Keywords.XSD_NS_START, StringComparison.Ordinal))
throw ExceptionBuilder.DataSetUnsupportedSchema(Keywords.XSDNS);
// now either the top level node is a table and we load it through dataReader...
// ... or backup the top node and all its attributes
topNode = xdoc.CreateElement(reader.Prefix, reader.LocalName, reader.NamespaceURI);
if (reader.HasAttributes) {
int attrCount = reader.AttributeCount;
for (int i = 0; i < attrCount; i++) {
reader.MoveToAttribute(i);
if (reader.NamespaceURI.Equals(Keywords.XSD_XMLNS_NS))
topNode.SetAttribute(reader.Name, reader.GetAttribute(i));
else {
XmlAttribute attr = topNode.SetAttributeNode(reader.LocalName, reader.NamespaceURI);
attr.Prefix = reader.Prefix;
attr.Value = reader.GetAttribute(i);
}
}
}
reader.Read();
}
while (MoveToElement(reader, iCurrentDepth)) {
if (reader.LocalName == Keywords.XDR_SCHEMA && reader.NamespaceURI == Keywords.XDRNS) {
// load XDR schema
if (!fSchemaFound && !fDataFound && (mode != XmlReadMode.IgnoreSchema) && (mode != XmlReadMode.InferSchema) &&
(mode != XmlReadMode.InferTypedSchema))
{
ReadXDRSchema(reader);
fSchemaFound = true;
fIsXdr = true;
}
else {
reader.Skip();
}
continue;
}
if (reader.LocalName == Keywords.XSD_SCHEMA && reader.NamespaceURI == Keywords.XSDNS) {
// load XSD schema and exit
if ((mode != XmlReadMode.IgnoreSchema) && (mode != XmlReadMode.InferSchema) &&
(mode != XmlReadMode.InferTypedSchema))
{
ReadXSDSchema(reader, denyResolving);
fSchemaFound = true;
}
else {
reader.Skip();
}
continue;
}
if ((reader.LocalName == Keywords.DIFFGRAM) && (reader.NamespaceURI == Keywords.DFFNS)) {
if ((mode == XmlReadMode.DiffGram) || (mode == XmlReadMode.IgnoreSchema)) {
this.ReadXmlDiffgram(reader);
ret = XmlReadMode.DiffGram;
}
else {
reader.Skip();
}
continue;
}
if (reader.LocalName == Keywords.XSD_SCHEMA && reader.NamespaceURI.StartsWith(Keywords.XSD_NS_START, StringComparison.Ordinal))
throw ExceptionBuilder.DataSetUnsupportedSchema(Keywords.XSDNS);
if (mode == XmlReadMode.DiffGram) {
reader.Skip();
continue; // we do not read data in diffgram mode
}
// if we are here we found some data
fDataFound = true;
if (mode == XmlReadMode.InferSchema || mode == XmlReadMode.InferTypedSchema) { //save the node in DOM until the end;
XmlNode node = xdoc.ReadNode(reader);
topNode.AppendChild(node);
}
else {
if (xmlload == null)
xmlload = new XmlDataLoader(this, fIsXdr, topNode, mode == XmlReadMode.IgnoreSchema);
xmlload.LoadData(reader);
}
} //end of the while
// read the closing tag of the current element
ReadEndElement(reader);
// now top node contains the data part
xdoc.AppendChild(topNode);
if (xmlload == null)
xmlload = new XmlDataLoader(this, fIsXdr, mode == XmlReadMode.IgnoreSchema);
if (mode == XmlReadMode.DiffGram) {
// we already got the diffs through XmlReader interface
return ret;
}
// Load Data
if (mode == XmlReadMode.InferSchema || mode == XmlReadMode.InferTypedSchema) {
InferSchema(xdoc, null, mode);
ret = XmlReadMode.InferSchema;
xmlload.FromInference = true;
// }
try {
xmlload.LoadData(xdoc);
}
finally {
xmlload.FromInference = false;
}
}
}
return ret;
}
finally {
// Dev11 904428: prepare and cleanup rowDiffId hashtable
rowDiffIdUsage.Cleanup();
}
}
finally {
Bid.ScopeLeave(ref hscp);
}
}
private void ReadXmlDiffgram(XmlReader reader) {
IntPtr hscp;
Bid.ScopeEnter(out hscp, "<ds.DataSet.ReadXmlDiffgram|INFO> %d#\n", ObjectID);
try {
int d = reader.Depth;
bool fEnforce = this.EnforceConstraints;
this.EnforceConstraints = false;
DataSet newDs;
bool isEmpty = this.IsEmpty();
if (isEmpty) {
newDs = this;
}
else {
newDs = this.Clone();
newDs.EnforceConstraints = false;
}
foreach (DataTable t in newDs.Tables) {
t.Rows.nullInList = 0;
}
reader.MoveToContent();
if ((reader.LocalName != Keywords.DIFFGRAM) && (reader.NamespaceURI != Keywords.DFFNS))
return;
reader.Read();
if (reader.NodeType == XmlNodeType.Whitespace)
MoveToElement(reader, reader.Depth - 1 /*iCurrentDepth*/); // skip over whitespaces.
newDs.fInLoadDiffgram = true;
if (reader.Depth > d) {
if ((reader.NamespaceURI != Keywords.DFFNS) && (reader.NamespaceURI != Keywords.MSDNS)) {
//we should be inside the dataset part
XmlDocument xdoc = new XmlDocument();
XmlElement node = xdoc.CreateElement(reader.Prefix, reader.LocalName, reader.NamespaceURI);
reader.Read();
if (reader.NodeType == XmlNodeType.Whitespace) {
MoveToElement(reader, reader.Depth - 1 /*iCurrentDepth*/); // skip over whitespaces.
}
if (reader.Depth - 1 > d) {
XmlDataLoader xmlload = new XmlDataLoader(newDs, false, node, false);
xmlload.isDiffgram = true; // turn on the special processing
xmlload.LoadData(reader);
}
ReadEndElement(reader);
if (reader.NodeType == XmlNodeType.Whitespace) {
MoveToElement(reader, reader.Depth - 1 /*iCurrentDepth*/); // skip over whitespaces.
}
}
Debug.Assert(reader.NodeType != XmlNodeType.Whitespace, "Should not be on Whitespace node");
if (((reader.LocalName == Keywords.SQL_BEFORE) && (reader.NamespaceURI == Keywords.DFFNS)) ||
((reader.LocalName == Keywords.MSD_ERRORS) && (reader.NamespaceURI == Keywords.DFFNS)))
{
//this will consume the changes and the errors part
XMLDiffLoader diffLoader = new XMLDiffLoader();
diffLoader.LoadDiffGram(newDs, reader);
}
// get to the closing diff tag
while (reader.Depth > d) {
reader.Read();
}
// read the closing tag
ReadEndElement(reader);
}
foreach (DataTable t in newDs.Tables) {
if (t.Rows.nullInList > 0)
throw ExceptionBuilder.RowInsertMissing(t.TableName);
}
newDs.fInLoadDiffgram = false;
//terrible performance!
foreach (DataTable t in newDs.Tables) {
DataRelation[] nestedParentRelations = t.NestedParentRelations;
foreach (DataRelation rel in nestedParentRelations) {
if (rel.ParentTable == t) {
foreach (DataRow r in t.Rows) {
foreach (DataRelation rel2 in nestedParentRelations) {
r.CheckForLoops(rel2);
}
}
}
}
}
if (!isEmpty) {
this.Merge(newDs);
if (this.dataSetName == "NewDataSet")
this.dataSetName = newDs.dataSetName;
newDs.EnforceConstraints = fEnforce;
}
this.EnforceConstraints = fEnforce;
}
finally {
Bid.ScopeLeave(ref hscp);
}
}
internal XmlReadMode ReadXml(XmlReader reader, bool denyResolving)
{
IntPtr hscp;
Bid.ScopeEnter(out hscp, "<ds.DataSet.ReadXml|INFO> %d#, denyResolving=%d{bool}\n", ObjectID, denyResolving);
try {
DataTable.DSRowDiffIdUsageSection rowDiffIdUsage = new DataTable.DSRowDiffIdUsageSection();
try {
bool fDataFound = false;
bool fSchemaFound = false;
bool fDiffsFound = false;
bool fIsXdr = false;
int iCurrentDepth = -1;
XmlReadMode ret = XmlReadMode.Auto;
bool isEmptyDataSet = false;
bool topNodeIsProcessed = false; // we chanche topnode and there is just one case that we miss to process it
// it is : <elem attrib1="Attrib">txt</elem>
// clear the hashtable to avoid conflicts between diffgrams, SqlHotFix 782
rowDiffIdUsage.Prepare(this);
if (reader == null)
return ret;
if (Tables.Count == 0) {
isEmptyDataSet = true;
}
if (reader is XmlTextReader)
((XmlTextReader)reader).WhitespaceHandling = WhitespaceHandling.Significant;
XmlDocument xdoc = new XmlDocument(); // we may need this to infer the schema
XmlDataLoader xmlload = null;
reader.MoveToContent();
if (reader.NodeType == XmlNodeType.Element)
iCurrentDepth = reader.Depth;
if (reader.NodeType == XmlNodeType.Element) {
if ((reader.LocalName == Keywords.DIFFGRAM) && (reader.NamespaceURI == Keywords.DFFNS)) {
this.ReadXmlDiffgram(reader);
// read the closing tag of the current element
ReadEndElement(reader);
return XmlReadMode.DiffGram;
}
// if reader points to the schema load it
if (reader.LocalName == Keywords.XDR_SCHEMA && reader.NamespaceURI == Keywords.XDRNS) {
// load XDR schema and exit
ReadXDRSchema(reader);
return XmlReadMode.ReadSchema; //since the top level element is a schema return
}
if (reader.LocalName == Keywords.XSD_SCHEMA && reader.NamespaceURI == Keywords.XSDNS) {
// load XSD schema and exit
ReadXSDSchema(reader, denyResolving);
return XmlReadMode.ReadSchema; //since the top level element is a schema return
}
if (reader.LocalName == Keywords.XSD_SCHEMA && reader.NamespaceURI.StartsWith(Keywords.XSD_NS_START, StringComparison.Ordinal))
throw ExceptionBuilder.DataSetUnsupportedSchema(Keywords.XSDNS);
// now either the top level node is a table and we load it through dataReader...
// ... or backup the top node and all its attributes because we may need to InferSchema
XmlElement topNode = xdoc.CreateElement(reader.Prefix, reader.LocalName, reader.NamespaceURI);
if (reader.HasAttributes) {
int attrCount = reader.AttributeCount;
for (int i = 0; i < attrCount; i++) {
reader.MoveToAttribute(i);
if (reader.NamespaceURI.Equals(Keywords.XSD_XMLNS_NS))
topNode.SetAttribute(reader.Name, reader.GetAttribute(i));
else {
XmlAttribute attr = topNode.SetAttributeNode(reader.LocalName, reader.NamespaceURI);
attr.Prefix = reader.Prefix;
attr.Value = reader.GetAttribute(i);
}
}
}
reader.Read();
string rootNodeSimpleContent = reader.Value;
while (MoveToElement(reader, iCurrentDepth)) {
if ((reader.LocalName == Keywords.DIFFGRAM) && (reader.NamespaceURI == Keywords.DFFNS)) {
this.ReadXmlDiffgram(reader);
// read the closing tag of the current element
// YUKON FIX ReadEndElement(reader);
// return XmlReadMode.DiffGram;
ret = XmlReadMode.DiffGram; // continue reading for multiple schemas
}
// if reader points to the schema load it...
if (!fSchemaFound && !fDataFound && reader.LocalName == Keywords.XDR_SCHEMA && reader.NamespaceURI == Keywords.XDRNS) {
// load XDR schema and exit
ReadXDRSchema(reader);
fSchemaFound = true;
fIsXdr = true;
continue;
}
if (reader.LocalName == Keywords.XSD_SCHEMA && reader.NamespaceURI == Keywords.XSDNS) {
// load XSD schema and exit
ReadXSDSchema(reader, denyResolving);
fSchemaFound = true;
continue;
}
if (reader.LocalName == Keywords.XSD_SCHEMA && reader.NamespaceURI.StartsWith(Keywords.XSD_NS_START, StringComparison.Ordinal))
throw ExceptionBuilder.DataSetUnsupportedSchema(Keywords.XSDNS);
if ((reader.LocalName == Keywords.DIFFGRAM) && (reader.NamespaceURI == Keywords.DFFNS)) {
this.ReadXmlDiffgram(reader);
fDiffsFound = true;
ret = XmlReadMode.DiffGram;
}
else {
// We have found data IFF the reader.NodeType == Element and reader.depth == currentDepth-1
// if reader.NodeType == whitespace, skip all white spaces.
// skip processing i.e. continue if the first non-whitespace node is not of type element.
while (!reader.EOF && reader.NodeType == XmlNodeType.Whitespace)
reader.Read();
if (reader.NodeType != XmlNodeType.Element)
continue;
// we found data here
fDataFound = true;
if (!fSchemaFound && Tables.Count == 0) {
XmlNode node = xdoc.ReadNode(reader);
topNode.AppendChild(node);
}
else {
if (xmlload == null)
xmlload = new XmlDataLoader(this, fIsXdr, topNode, false);
xmlload.LoadData(reader);
topNodeIsProcessed = true; // we process the topnode
if (fSchemaFound)
ret = XmlReadMode.ReadSchema;
else
ret = XmlReadMode.IgnoreSchema;
}
}
}
// read the closing tag of the current element
ReadEndElement(reader);
bool isfTopLevelTableSet = false;
bool tmpValue = this.fTopLevelTable;
//While inference we ignore root elements text content
if (!fSchemaFound && Tables.Count == 0 && !topNode.HasChildNodes) { //We shoule not come add SC of root elemnt to topNode if we are not infering
this.fTopLevelTable = true;
isfTopLevelTableSet = true;
if ((rootNodeSimpleContent != null && rootNodeSimpleContent.Length > 0))
topNode.InnerText = rootNodeSimpleContent;
}
if (!isEmptyDataSet) {
if ((rootNodeSimpleContent != null && rootNodeSimpleContent.Length > 0))
topNode.InnerText = rootNodeSimpleContent;
}
// now top node contains the data part
xdoc.AppendChild(topNode);
if (xmlload == null)
xmlload = new XmlDataLoader(this, fIsXdr, topNode, false);
if (!isEmptyDataSet && !topNodeIsProcessed) {
XmlElement root = xdoc.DocumentElement;
Debug.Assert(root.NamespaceURI != null, "root.NamespaceURI should not ne null, it should be empty string");
// just recognize that below given Xml represents datatable in toplevel
//<table attr1="foo" attr2="bar" table_Text="junk">text</table>
// only allow root element with simple content, if any
if (root.ChildNodes.Count == 0 ||
((root.ChildNodes.Count == 1) && root.FirstChild.GetType() == typeof(System.Xml.XmlText))) {
bool initfTopLevelTable = this.fTopLevelTable;
// if root element maps to a datatable
// ds and dt cant have the samm name and ns at the same time, how to write to xml
if (this.DataSetName != root.Name && this.namespaceURI != root.NamespaceURI &&
Tables.Contains(root.Name, (root.NamespaceURI.Length == 0) ? null : root.NamespaceURI, false, true)) {
this.fTopLevelTable = true;
}
try {
xmlload.LoadData(xdoc);
}
finally {
this.fTopLevelTable = initfTopLevelTable; // this is not for inference, we have schema and we were skipping
// topnode where it was a datatable, We must restore the value
}
}
}// above check and below check are orthogonal
// so we InferSchema
if (!fDiffsFound) {
// Load Data
if (!fSchemaFound && Tables.Count == 0) {
InferSchema(xdoc, null, XmlReadMode.Auto);
ret = XmlReadMode.InferSchema;
xmlload.FromInference = true;
try {
xmlload.LoadData(xdoc);
}
finally {
xmlload.FromInference = false;
}
}
//We dont need this assignement. Once we set it(where we set it during inference), it won't be changed
if (isfTopLevelTableSet)
this.fTopLevelTable = tmpValue;
}
}
return ret;
}
finally {
rowDiffIdUsage.Cleanup();
}
}
finally {
Bid.ScopeLeave(ref hscp);
}
}
internal XmlReadMode ReadXml(XmlReader reader, XmlReadMode mode, bool denyResolving)
{
bool flag3 = false;
bool flag4 = false;
bool isXdr = false;
int depth = -1;
XmlReadMode diffGram = mode;
if (reader != null)
{
bool originalEnforceConstraint = false;
if (this.DataSet != null)
{
originalEnforceConstraint = this.DataSet.EnforceConstraints;
this.DataSet.EnforceConstraints = false;
}
else
{
originalEnforceConstraint = this.EnforceConstraints;
this.EnforceConstraints = false;
}
if (reader is XmlTextReader)
{
((XmlTextReader) reader).WhitespaceHandling = WhitespaceHandling.Significant;
}
XmlDocument document = new XmlDocument();
if ((mode != XmlReadMode.Fragment) && (reader.NodeType == XmlNodeType.Element))
{
depth = reader.Depth;
}
reader.MoveToContent();
if ((this.Columns.Count == 0) && this.IsEmptyXml(reader))
{
reader.Read();
return diffGram;
}
XmlDataLoader loader = null;
if (reader.NodeType == XmlNodeType.Element)
{
XmlElement topNode = null;
if (mode == XmlReadMode.Fragment)
{
document.AppendChild(document.CreateElement("ds_sqlXmlWraPPeR"));
topNode = document.DocumentElement;
}
else
{
if ((reader.LocalName == "diffgram") && (reader.NamespaceURI == "urn:schemas-microsoft-com:xml-diffgram-v1"))
{
if ((mode == XmlReadMode.DiffGram) || (mode == XmlReadMode.IgnoreSchema))
{
if (this.Columns.Count == 0)
{
if (!reader.IsEmptyElement)
{
throw ExceptionBuilder.DataTableInferenceNotSupported();
}
reader.Read();
return XmlReadMode.DiffGram;
}
this.ReadXmlDiffgram(reader);
this.ReadEndElement(reader);
}
else
{
reader.Skip();
}
this.RestoreConstraint(originalEnforceConstraint);
return diffGram;
}
if ((reader.LocalName == "Schema") && (reader.NamespaceURI == "urn:schemas-microsoft-com:xml-data"))
{
if ((mode != XmlReadMode.IgnoreSchema) && (mode != XmlReadMode.InferSchema))
{
this.ReadXDRSchema(reader);
}
else
{
reader.Skip();
}
this.RestoreConstraint(originalEnforceConstraint);
return diffGram;
}
if ((reader.LocalName == "schema") && (reader.NamespaceURI == "http://www.w3.org/2001/XMLSchema"))
{
if ((mode != XmlReadMode.IgnoreSchema) && (mode != XmlReadMode.InferSchema))
{
this.ReadXmlSchema(reader, denyResolving);
}
else
{
reader.Skip();
}
this.RestoreConstraint(originalEnforceConstraint);
return diffGram;
}
if ((reader.LocalName == "schema") && reader.NamespaceURI.StartsWith("http://www.w3.org/", StringComparison.Ordinal))
{
if (this.DataSet != null)
{
this.DataSet.RestoreEnforceConstraints(originalEnforceConstraint);
}
else
{
this.enforceConstraints = originalEnforceConstraint;
}
throw ExceptionBuilder.DataSetUnsupportedSchema("http://www.w3.org/2001/XMLSchema");
}
topNode = document.CreateElement(reader.Prefix, reader.LocalName, reader.NamespaceURI);
if (reader.HasAttributes)
{
int attributeCount = reader.AttributeCount;
for (int i = 0; i < attributeCount; i++)
{
reader.MoveToAttribute(i);
if (reader.NamespaceURI.Equals("http://www.w3.org/2000/xmlns/"))
{
topNode.SetAttribute(reader.Name, reader.GetAttribute(i));
}
else
{
XmlAttribute attribute = topNode.SetAttributeNode(reader.LocalName, reader.NamespaceURI);
attribute.Prefix = reader.Prefix;
attribute.Value = reader.GetAttribute(i);
}
}
}
reader.Read();
}
while (this.MoveToElement(reader, depth))
{
if ((reader.LocalName == "Schema") && (reader.NamespaceURI == "urn:schemas-microsoft-com:xml-data"))
{
if ((!flag3 && !flag4) && ((mode != XmlReadMode.IgnoreSchema) && (mode != XmlReadMode.InferSchema)))
{
this.ReadXDRSchema(reader);
flag3 = true;
isXdr = true;
}
else
{
reader.Skip();
}
}
else
{
if ((reader.LocalName == "schema") && (reader.NamespaceURI == "http://www.w3.org/2001/XMLSchema"))
{
if ((mode != XmlReadMode.IgnoreSchema) && (mode != XmlReadMode.InferSchema))
{
this.ReadXmlSchema(reader, denyResolving);
flag3 = true;
}
else
{
reader.Skip();
}
continue;
}
if ((reader.LocalName == "diffgram") && (reader.NamespaceURI == "urn:schemas-microsoft-com:xml-diffgram-v1"))
{
if ((mode == XmlReadMode.DiffGram) || (mode == XmlReadMode.IgnoreSchema))
{
if (this.Columns.Count == 0)
{
if (!reader.IsEmptyElement)
{
throw ExceptionBuilder.DataTableInferenceNotSupported();
}
reader.Read();
return XmlReadMode.DiffGram;
}
this.ReadXmlDiffgram(reader);
diffGram = XmlReadMode.DiffGram;
}
else
{
reader.Skip();
}
continue;
}
if ((reader.LocalName == "schema") && reader.NamespaceURI.StartsWith("http://www.w3.org/", StringComparison.Ordinal))
{
if (this.DataSet != null)
{
this.DataSet.RestoreEnforceConstraints(originalEnforceConstraint);
}
else
{
this.enforceConstraints = originalEnforceConstraint;
}
throw ExceptionBuilder.DataSetUnsupportedSchema("http://www.w3.org/2001/XMLSchema");
}
if (mode == XmlReadMode.DiffGram)
{
reader.Skip();
}
else
{
flag4 = true;
if (mode == XmlReadMode.InferSchema)
{
XmlNode newChild = document.ReadNode(reader);
topNode.AppendChild(newChild);
continue;
}
if (this.Columns.Count == 0)
{
throw ExceptionBuilder.DataTableInferenceNotSupported();
}
if (loader == null)
{
loader = new XmlDataLoader(this, isXdr, topNode, mode == XmlReadMode.IgnoreSchema);
}
loader.LoadData(reader);
}
}
}
this.ReadEndElement(reader);
document.AppendChild(topNode);
if (loader == null)
{
loader = new XmlDataLoader(this, isXdr, mode == XmlReadMode.IgnoreSchema);
}
if (mode == XmlReadMode.DiffGram)
{
this.RestoreConstraint(originalEnforceConstraint);
return diffGram;
}
if ((mode == XmlReadMode.InferSchema) && (this.Columns.Count == 0))
{
throw ExceptionBuilder.DataTableInferenceNotSupported();
}
}
this.RestoreConstraint(originalEnforceConstraint);
}
return diffGram;
}
internal XmlReadMode ReadXml(XmlReader reader, bool denyResolving)
{
XmlReadMode mode;
IntPtr ptr;
Bid.ScopeEnter(out ptr, "<ds.DataTable.ReadXml|INFO> %d#, denyResolving=%d{bool}\n", this.ObjectID, denyResolving);
try
{
try
{
bool flag5 = false;
bool flag2 = false;
bool flag4 = false;
bool isXdr = false;
int depth = -1;
XmlReadMode auto = XmlReadMode.Auto;
this.rowDiffId = null;
if (reader != null)
{
bool originalEnforceConstraint = false;
if (this.DataSet != null)
{
originalEnforceConstraint = this.DataSet.EnforceConstraints;
this.DataSet.EnforceConstraints = false;
}
else
{
originalEnforceConstraint = this.EnforceConstraints;
this.EnforceConstraints = false;
}
if (reader is XmlTextReader)
{
((XmlTextReader) reader).WhitespaceHandling = WhitespaceHandling.Significant;
}
XmlDocument document = new XmlDocument();
XmlDataLoader loader = null;
reader.MoveToContent();
if ((this.Columns.Count == 0) && this.IsEmptyXml(reader))
{
reader.Read();
return auto;
}
if (reader.NodeType == XmlNodeType.Element)
{
depth = reader.Depth;
if ((reader.LocalName == "diffgram") && (reader.NamespaceURI == "urn:schemas-microsoft-com:xml-diffgram-v1"))
{
if (this.Columns.Count == 0)
{
if (!reader.IsEmptyElement)
{
throw ExceptionBuilder.DataTableInferenceNotSupported();
}
reader.Read();
return XmlReadMode.DiffGram;
}
this.ReadXmlDiffgram(reader);
this.ReadEndElement(reader);
this.RestoreConstraint(originalEnforceConstraint);
return XmlReadMode.DiffGram;
}
if ((reader.LocalName == "Schema") && (reader.NamespaceURI == "urn:schemas-microsoft-com:xml-data"))
{
this.ReadXDRSchema(reader);
this.RestoreConstraint(originalEnforceConstraint);
return XmlReadMode.ReadSchema;
}
if ((reader.LocalName == "schema") && (reader.NamespaceURI == "http://www.w3.org/2001/XMLSchema"))
{
this.ReadXmlSchema(reader, denyResolving);
this.RestoreConstraint(originalEnforceConstraint);
return XmlReadMode.ReadSchema;
}
if ((reader.LocalName == "schema") && reader.NamespaceURI.StartsWith("http://www.w3.org/", StringComparison.Ordinal))
{
if (this.DataSet != null)
{
this.DataSet.RestoreEnforceConstraints(originalEnforceConstraint);
}
else
{
this.enforceConstraints = originalEnforceConstraint;
}
throw ExceptionBuilder.DataSetUnsupportedSchema("http://www.w3.org/2001/XMLSchema");
}
XmlElement topNode = document.CreateElement(reader.Prefix, reader.LocalName, reader.NamespaceURI);
if (reader.HasAttributes)
{
int attributeCount = reader.AttributeCount;
for (int i = 0; i < attributeCount; i++)
{
reader.MoveToAttribute(i);
if (reader.NamespaceURI.Equals("http://www.w3.org/2000/xmlns/"))
{
topNode.SetAttribute(reader.Name, reader.GetAttribute(i));
}
else
{
XmlAttribute attribute = topNode.SetAttributeNode(reader.LocalName, reader.NamespaceURI);
attribute.Prefix = reader.Prefix;
attribute.Value = reader.GetAttribute(i);
}
}
}
reader.Read();
while (this.MoveToElement(reader, depth))
{
if ((reader.LocalName == "diffgram") && (reader.NamespaceURI == "urn:schemas-microsoft-com:xml-diffgram-v1"))
{
this.ReadXmlDiffgram(reader);
this.ReadEndElement(reader);
this.RestoreConstraint(originalEnforceConstraint);
return XmlReadMode.DiffGram;
}
if ((!flag2 && !flag5) && ((reader.LocalName == "Schema") && (reader.NamespaceURI == "urn:schemas-microsoft-com:xml-data")))
{
this.ReadXDRSchema(reader);
flag2 = true;
isXdr = true;
}
else
{
if ((reader.LocalName == "schema") && (reader.NamespaceURI == "http://www.w3.org/2001/XMLSchema"))
{
this.ReadXmlSchema(reader, denyResolving);
flag2 = true;
continue;
}
if ((reader.LocalName == "schema") && reader.NamespaceURI.StartsWith("http://www.w3.org/", StringComparison.Ordinal))
{
if (this.DataSet != null)
{
this.DataSet.RestoreEnforceConstraints(originalEnforceConstraint);
}
else
{
this.enforceConstraints = originalEnforceConstraint;
}
throw ExceptionBuilder.DataSetUnsupportedSchema("http://www.w3.org/2001/XMLSchema");
}
if ((reader.LocalName == "diffgram") && (reader.NamespaceURI == "urn:schemas-microsoft-com:xml-diffgram-v1"))
{
this.ReadXmlDiffgram(reader);
flag4 = true;
auto = XmlReadMode.DiffGram;
}
else
{
flag5 = true;
if (!flag2 && (this.Columns.Count == 0))
{
XmlNode newChild = document.ReadNode(reader);
topNode.AppendChild(newChild);
continue;
}
if (loader == null)
{
loader = new XmlDataLoader(this, isXdr, topNode, false);
}
loader.LoadData(reader);
if (flag2)
{
auto = XmlReadMode.ReadSchema;
continue;
}
auto = XmlReadMode.IgnoreSchema;
}
}
}
this.ReadEndElement(reader);
document.AppendChild(topNode);
if (!flag2 && (this.Columns.Count == 0))
{
if (!this.IsEmptyXml(reader))
{
throw ExceptionBuilder.DataTableInferenceNotSupported();
}
reader.Read();
return auto;
}
if (loader == null)
{
loader = new XmlDataLoader(this, isXdr, false);
}
}
this.RestoreConstraint(originalEnforceConstraint);
}
return auto;
}
finally
{
this.rowDiffId = null;
}
}
finally
{
Bid.ScopeLeave(ref ptr);
}
return mode;
}
